Common Core Booster
|Manufacturer||Lockheed Martin (1998–2006)
United Launch Alliance (2006—)
|Country of origin||United States|
|Used on||Atlas V (stage 1)
Atlas V Heavy (boosters, cancelled)
GX (stage 1, cancelled)
|Height||32.46 metres (106.5 ft)|
|Diameter||3.81 metres (12.5 ft)|
|Gross mass||306,914 kilograms (676,630 lb)|
|Thrust||4,152 kilonewtons (933,000 lbf)|
|Burn time||253 seconds|
The Common Core Booster (CCB) is an American rocket stage, which is used as the first stage of the Atlas V rocket as part of its modular design. It was also intended that two additional CCBs would be used as boosters on the Atlas V Heavy, however this configuration has not been developed. Use of a Common Core Booster as the first stage of the Japanese GX was also planned; however, this programme was cancelled in late 2009.
Testing of the CCB and its RD-180 engines was conducted in the United States at the Marshall Space Flight Center, and in Khimki, Russia. The test programme concluded with the final engine test in December 2001. The first launch of a Common Core Booster was the maiden flight of the Atlas V, which was launched from Space Launch Complex 41 at the Cape Canaveral Air Force Station on 21 August 2002. As of January 2015, the Atlas V has made fifty-two flights, all of which have used a single Common Core Booster.
- Universal Rocket Module, the Russian Angara common core.
- Falcon Heavy, the SpaceX Falcon 9 multi-core variant.
- Wade, Mark. "Atlas CCB". Encyclopedia Astronautica. Retrieved 10 September 2010.
- "Lockheed Martin's Atlas V RD-180 Engine Successfully Completes Testing Program". SpaceRef. 19 December 2001. Retrieved 10 September 2010.
- McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 10 September 2010.
- Kyle, Ed. "Atlas 5 Launch Record". Space Launch Report. Retrieved 7 February 2015.
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